NMCA has its own rules for supercars

[fastlane]

NMCA no longer follows NHRA with supercar/ Showdown rules



2019 NMCA RULE AMENDMENTS AND CLARIFICATIONS(THESE RULE AMENDMENTS COVER RULE CHANGES MADE TO THE 2019 RULEBOOK)(UNLESS OTHERWISE NOTED, RULE CHANGES BECOME EFFECTIVE IMMEDIATELY)RELEASE DATE 6/29/2019FACTORY SUPER CARSENGINEPOWER ADDERBASE WEIGHTFord 330 (2008 –2012)2.3L TVS / Eaton3275Ford 302 (2010 –2016)2.9L Whipple34503525 Ford 327 (2019)3.0L Whipple3575Ford 351 (2019)2.9L Whipple3575GM 327 (2012)2.9L Whipple3275GM 350 (2014 -2018)2.9L Whipple34503525GM 350 (2019)2.65L Magnuson35253575Mopar 354 (2015)2.9L Whipple 35003575Supercharger permitted pulley chartYEAR BRAND CID/HP SUPERCHARGER UPPER LOWER 2014-2015 Camaro COPO 350530 HP 2.9L Whipple3.2508.0002016-2018 Camaro COPO 350580 HP 2.9L Whipple3.2508.0002017-2018 Camaro COPO 350590 HP 2.9L Whipple3.1258.0002019 Camaro COPO 350630 HP 2.65L Magnuson 34J/32R3.5003.5808.0002015 Challenger Drag Pak 354530 HP 2.9L Whipple3.0003.1257.950540 HP 2.9L Whipple3.0003.1257.9502008 Mustang Cobra Jet 330425 HP 2.3L Eaton2.9118.1252010 Mustang Cobra Jet 330435 HP 2.3L Eaton 2.7548.125500 HP 2.9L Whipple3.9708.1252012 Mustang Cobra Jet 330450 HP 2.3L Eaton 2.9118.125510 HP 2.9L Whipple3.9708.1252013 Mustang Cobra Jet 302500 HP 2.9L Whipple3.5008.0002014 Mustang Cobra Jet 302525 HP 2.9L Whipple3.3758.000560 HP 2.9L Whipple3.0008.0002016 Mustang Cobra Jet 302565 HP 2.9L Whipple 3.2508.000575 HP 2.9L Whipple3.2508.0002019 MustangCobra Jet 327610HP3.0L Whipple3.7508.0002019 Mustang Cobra Jet 351570 HP2.9L Whipple3.5008.000